Lucifer

Lucifer is a devil arm wielded by Dante in Devil May Cry 4, which he obtains from Berial's Hell Gate, which it was used to power. It takes the form of a skull shaped backplate from which two wing shaped sheathes extend outward. These sheathes are able to spawn a countless number of swords that are supercharged with demonic power, allowing them to hover in mid air or be launched with explosive impact. These swords can be rearranged, thrown, or wielded, and will explode either after a short duration, at a command from Dante such as a clap or throwing the rose held in his mouth, or once fifteen more blades have been spawned.

Appearance
Lucifer takes the appearance of a hellish backpack, shaped like a streamlined skull with large glowing red eyes that stare in fury, with metallic projections protruding from its forehead, giving Dante a semblance of folded wings.

Gameplay
Although Lucifer is a melee weapon, it shines at mid-ranged attacks while in Swordmaster Style due to Dante's ability to reposition swords with the Bondage technique. Dante can attack smaller, near-by enemies with standard combos, then reposition his missed strikes around something out of reach before detonating them all. Larger enemies in particular are vulnerable to Lucifer, as their large size can hold more swords, and more swords equals more damage. Berial is uniquely weak to Lucifer's attacks as multiple exploding swords can stun him.

Design
The design of the spawned swords is closely similar to those of Darts from Devil May Cry 2. Dante's character model when wielding Lucifer shows him holding a rose in his mouth, and many of the combos resemble dance steps, continuing the Flamenco theme. Furthermore, the swords behave similarly to Summoned Swords, and share the same "red vs. blue" theme as Dante and Vergil themselves.

Background
Lucifer (lit. "Light Bearer" in Latin) is the title of a Babylonian king interpreted in Christian mythology to have been the name of the archangel Satan before his fall. Belial, another demon, is sometimes considered to be his father or son.

The scene in which Dante acquires the Lucifer is set to Flamenco music and has Dante making sexual innuendo while planting Lucifer's swords in the Hell Gate. This theme continues on with the named attacks of the weapon, which are derived from sexual terms, primarily those of BDSM. This may allude to the general belief that the Devil is seductive and beautiful, using sexual appeal and pleasure to manipulate mortals and exert his power over flesh and human desires and emotions.

Trivia

 * The darts generated by Lucifer closely resemble the ones Dante was impaled with just prior to the final battle with Mundus. Mundus also drew basis from Lucifer.